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unicode: Add utf8-data module

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utf8data.h contains a large database table which is an auto-generated
decodification trie for the unicode normalization functions.

Allow building it into a separate module.

Based on a patch from Shreeya Patel <shreeya.patel@collabora.com>.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
This commit is contained in:
Christoph Hellwig
2021-09-15 09:00:05 +02:00
committed by Gabriel Krisman Bertazi
parent 6ca99ce756
commit 2b3d047870
9 changed files with 126 additions and 91 deletions
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24
fs/unicode/mkutf8data.c
View File

@@ -3287,12 +3287,10 @@ static void write_file(void)
open_fail(utf8_name, errno);
fprintf(file, "/* This file is generated code, do not edit. */\n");
fprintf(file, "#ifndef __INCLUDED_FROM_UTF8NORM_C__\n");
fprintf(file, "#error Only nls_utf8-norm.c should include this file.\n");
fprintf(file, "#endif\n");
fprintf(file, "\n");
fprintf(file, "static const unsigned int utf8vers = %#x;\n",
unicode_maxage);
fprintf(file, "#include <linux/module.h>\n");
fprintf(file, "#include <linux/kernel.h>\n");
fprintf(file, "#include \"utf8n.h\"\n");
fprintf(file, "\n");
fprintf(file, "static const unsigned int utf8agetab[] = {\n");
for (i = 0; i != ages_count; i++)
@@ -3339,6 +3337,22 @@ static void write_file(void)
fprintf(file, "\n");
}
fprintf(file, "};\n");
fprintf(file, "\n");
fprintf(file, "struct utf8data_table utf8_data_table = {\n");
fprintf(file, "\t.utf8agetab = utf8agetab,\n");
fprintf(file, "\t.utf8agetab_size = ARRAY_SIZE(utf8agetab),\n");
fprintf(file, "\n");
fprintf(file, "\t.utf8nfdicfdata = utf8nfdicfdata,\n");
fprintf(file, "\t.utf8nfdicfdata_size = ARRAY_SIZE(utf8nfdicfdata),\n");
fprintf(file, "\n");
fprintf(file, "\t.utf8nfdidata = utf8nfdidata,\n");
fprintf(file, "\t.utf8nfdidata_size = ARRAY_SIZE(utf8nfdidata),\n");
fprintf(file, "\n");
fprintf(file, "\t.utf8data = utf8data,\n");
fprintf(file, "};\n");
fprintf(file, "EXPORT_SYMBOL_GPL(utf8_data_table);");
fprintf(file, "\n");
fprintf(file, "MODULE_LICENSE(\"GPL v2\");\n");
fclose(file);
}